20040167

素因数分解:

$7^2\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{167}}^1$

素因数の和:291

約数の個数: 24

約数和(自身を含む): 24514560

約数和(自身を除く): 4474393

約数列:

[1, 7, 31, 49, 79, 167, 217, 553, 1169, 1519, 2449, 3871, 5177, 8183, 13193, 17143, 36239, 92351, 120001, 253673, 408983, 646457, 2862881, 20040167]

約数ペア:

[(1, 20040167), (7, 2862881), (31, 646457), (49, 408983), (79, 253673), (167, 120001), (217, 92351), (553, 36239), (1169, 17143), (1519, 13193), (2449, 8183), (3871, 5177)]